Doubled Pawns
Two pawns of the same color stacked on the same file, usually resulting from a capture.
Doubled pawns cannot defend each other and often become a long-term structural weakness, particularly if the front pawn becomes fixed and immobile.
Etymology
The name is purely descriptive English — two pawns of one colour stacked on one file — and the earliest form is the adjective “double,” not the participle “doubled.” Philidor's English Analysis (1777) already argues the case for them: “a double pawn, when tied to other pawns, is by no means disadvantageous.” Staunton's 1847 glossary standardises the participial form and, interestingly, applies the label to only one of the two pawns: “when two Pawns of the same colour are on the same file, the front one is called a doubled Pawn.” Steinitz's 1889 list moves to the modern plural sense, and Nimzowitsch gave the subject a whole chapter, “The Doubled Pawn and Restraint.”
First documented: 1777 — Philidor, Analysis of the Game of Chess (English ed., 1777) — as “a double pawn”
Translations
Translations for this term haven't been added yet.